Sorry if this is a long question

So my due date is September 17th. We are supposed to be going to my bfs grandparents house the week of August 20th and we are supposed to be there until the 25th. My question is, is it too risky to go 3 hours away from home that close to my due date? He is so excited to go and I am too...but I'm just worried about baby and going into preterm labor. (Which I have a possibility of)